BACKGROUND: Post-pandemic psychosomatic complaints in children and adolescents have been underreported. This study investigated psychosomatic complaints in children and adolescents in Northern Italy in 2023, with the aim of identifying changes in predictors and vulnerable subgroups. METHODS: Cross-sectional data representative of scholars from a northern Italian province were analyzed using the Health Behavior in School-aged Children (HBSC) checklist. The sum scores, count data, and dichotomized data were examined, and predictor effects were expressed using a linear regression model for the sum scores. RESULTS: Data from 4525 participants (aged 7-19 years, 50.5% girls) were analyzed. Psychosomatic symptoms remained unchanged after the pandemic. Significant gender differences were noted, especially in older age groups, with girls reporting more complaints. Factors such as children's health, digital media use, and school problems significantly influence psychosomatic outcomes. While migration background negatively affected girls' psychosomatic well-being, boys showed improvement through sports. CONCLUSION: The psychosomatic well-being of children and adolescents did not improve after the pandemic. These findings indicate the need for targeted interventions, improved health literacy, and ongoing monitoring to support the mental well-being of this vulnerable population. Reducing screen time remains a critical strategy for enhancing youth well-being.